Boiler feeder



(N0 ModeL) S. HAIGH.

BOILER FEEDER. v No. 319,708. Patented June 9, 1885.

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ATTORNEYS.

N. PETERS. Phowidlwgnpher. Waahinglun, D C.

NITED STATES ATENT Gr mes,

SAMUEL HAIGH, or COQUITLAM, NEW WESTMINSTER, BRITISH coLUM BIA, CANADA.

BOILER-FEEDER.

SPECIFICATION forming part of Letters Patent No. 319,708, dated J'une 9, 1885.,

Application filed November 22, 1884. (No model.)

To all whom it may concern.-

Be it known that I, SAMUEL HAIGH, of Ooquitlam, New Westminster, British Columbia, Canada, have invented a new and Improved Automatic Boiler-Feeder, of which the following is a full, clear, and exact description.

My invention relates to the use of watercylinders which are alternately filled and their contents run into the boiler in succession.

The first part of the invention consists in the combination, with such water-cylinders, of asteam-cylinder, piston, and valve for moving the slidevalve of the water-cylinders.

The second part consists in the combination, with the steam-cylinder, of a steam-chest and a slide-valve moved by a rod for admitting steam into the water-cylinders to force the feedwater into the boiler, and in connection there- 'with a condenser and exhausting arrangements, whereby avacuum is formed in the water-cylinders after emptying.

The third part of the invention consists in an arrangement of floats, rods, and stops for actuating the valve of the steam-cylinder, all as hereinafter more particularly specified.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a sectional elevationof the boilerfeeder, Fig. 2 is an elevation of the apparatus, partly sectional, showing also the connection to the boiler and to the condenser; and Fig. 3 is a detail view.

The two vertical water-cylinders A A are placed contiguously in any convenient situation; but the bottom of the cylinders should be slightly below the water-level of the boiler to be fed.

In each cylinder is a float, B, of substantial character, and these floats should be braced internally to prevent their collapse under the steam-pressure. The floats areloose upon the rods a, that are stepped in the lower heads of the cylinder and extend through 'stuffingglands in the upper heads, up to the pivoted beam 1), to the opposite ends of which the rods a are connected by jointed links.

Between the two cylinders A is a steamchest, 0, supplied with steam from the boiler and containing a slide-valve, d, fitted to move on a seat which has two steam-ports,e e, leading to cylinders A, and an exhaust-opening, f, that connects by a pipe, 9, to a condenser, D,

An arch rising from chest G supports the head, t, in the cylinder E is upon the rod is, that extends downward and is connected to the valve (1 in chest 0. A valve, 15, in chest h is connected by a rod to beam 6, and works in connection with simple parts to admit steam to opposite sides of head t alternately. Rod it passes through a guide-bar, Z, and has upon it collars m m, which, coming in contact with rubber buffers n on the guide-bar, limit the movement of the rod.

The water-cylinders A have each a pipe, 0, connected in their lower heads for inlet of water from an elevated supply, and also for out let of the water to the boiler. The arrangement of the connections, as shown in Figs. 2 and 3, is as follows: The pipe 10 to the boiler and pipe g from the feed-tank connect by the two cross-pipes M" at opposite sides of the Ts s, by which the pipes 10 q connect to the cylinders A.

u a u a are check-valves in the pipes 19 and q, and the pipe q is shown as connected to the condenser D, so as to utilize the heat of the exhaust for warming the feed-water.

The operation is as follows: A stop-cock in -steamcylinder E, with its valvechest h,anda

the pipe g from the feed-tank being opened,

the water in the cylinder that is open to the boiler by one port ewill be gradually run out until the float B,falling,comes in contact with a collar, a, on rod a, and its weight, carrying the rod down, moves beam b so that valve 15 is shifted, and steam being thereby admitted to cylinder E acts on head i to move rod 70 and shift valve d, thus closing one port 6, and by opening the other port 6 steam is let into the filled water-cylinder, which will empty as soon as the pressure is equalized. The steam in the cylinder just emptied of water now exhausts into the condenser D, and the vacuum created in the cylinder starts the flow of water, so that it again refills. This operation continues so long as the supply of water continues from the tank or other source.

The condenser may be of any suitable form.

A simple coil in a tank is shown, and its dripcock '0 is'provided with a check 'valve', so as to prevent destruction of the vacuum formed in the water-cylinders.

When the supply of water is from an elevated source anddoes notrequire to be lifted,v the tank D is not required, and the condensing-coil may be placed in an overhead tank.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. The combinationgvitli the cylinders A A, having connections to the steam and water spaces of a boiler and to a water-supply and.

the steam-chest Gin the line of the connection to the steam-space, and having steam-passages leading to the cylinder and. for the exhaust,- of the valve (1, the cylinder E, piston i, co'n nection-k to the valve d, the valve t, the floats the valve t, substa f I 3. In a boiler-feeder, the combination, with the Water-cylinders A, floats B, rods a, beam b, steanrcylinder E, piston i, and rod k, of the steam-chest 0, provided with ports 6 f, the valve d, and connections to a boiler and awaoer-supply,- substantially as shown and described.

4. The combination, with the water-cylinder A, of the pipe, g, from a water-supply pipe, 19, to a boiler, cross-pipesr r, and check-valves 10, substantially as shown and described.

5. In a boiler-feeder, the combination of "condenser D'with "the" water cylinders A,

steam-chest Q, and valve d, substantially as and for the purpose specified.

6. In a boiler-feeder, the pipe connected to the boiler-pipe g from awater-sup'ply, crosspipes'ay'and check-valvesu, combined with the water cylinders A, substantially as described.

" SAMUE'LHAIGH. Witnesses: A I

"GORDON El. (lon'nonni),

V A. SBIQA I 1 

